Which of the following statements relating to Dharwar geological system are correct They belong to the Archaean geological period They are metamorphosed sedimentary rocks They are of great economic importance for its mineral resources They are found predominantly in Karnataka, Tamil Nadu, Odisha and Jharkhand Select the correct answer using the code given below : ?

1, 2, 3 and 4
2, 3 and 4 only
3 and 4 only
1 and 2 only

LohaHridoy

6 views

2025-01-04 04:42

1 Answers

AhmedNazir

Option 1 : 1, 2, 3 and 4

The correct answer is 1, 2, 3 and 4.

Dharwar system is the result of weathering of the Archaean rocks. The weathering produced sediments and formed the oldest sedimentary strata. Hence statement 1 is correct.
It is a metamorphosed sedimentary rock-system. Metamorphic rocks form when rocks are subjected to high heat, high pressure, hot mineral-rich fluids or some combination of these factors. The form of igneous rocks and sedimentary rocks are changed. Hence statement 2 is correct.
These rocks do not contain any fossils.
These rocks are of economic importance because they possess valuable minerals like high-grade iron-ore, manganese, copper, lead, gold, etc.
They are found predominantly in Karnataka, Tamil Nadu, Odisha and Jharkhand. Hence statement 3 and 4 are correct.

6 views Answered 2022-09-04 04:29

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